package com.woniuxy06;

abstract class Aaa{
    public abstract void test();
}
class Bbb extends Aaa{
    public void test(){
        System.out.println("Bbb test");
    }
}
public class Test02 {
    public static void main(String[] args) {
        Aaa aaa=new Bbb();
        aaa.test();
    }
}
